Thanks! I'm running 323 gears and need to find out how that fits with an overdrive transmission, thinking 355 may be a better fit, TBD??
Nice, the 323 seem to be a good fit, 1,872 rpm @ 60 mph, (if I entered it right?). Thanks wish4hemi!You can use a calculator to figure out what your RPM will be at cruising speed. This one has the 30% overdrive calculated into it: Engine RPM Calculator | Spicer Parts